The given service allows the financial organisations to connect to the SWIFT network of the big clients correspondents branches and affiliated structures and also to establish for them rules of realisation of calculations. SWIFT (Society for Worldwide Interbank Financial Telecommunications) - the international interbank system of information transfer and fulfilment of payments. Connection details to the head financial organisation should be found out directly from the financial organisations giving similar service. In 2000 by means of FIN it was transferred over 1.2 billion messages. Daily over 9 million messages is transferred. In 2000 by means of FIN it was transferred over 1.2 billion messages. Daily over 9 million messages is transferred. After events on September 11th 2001 CIA and the Treasury Department of the US have got access to the financial information of SWIFT network for the purpose of tracing of possible financial transactions of terrorists. Creation of hardware-software complex of SWIFT in the financial organisation and its direct connection to system SWIFT.